mirror of
https://github.com/espressif/esp-idf.git
synced 2024-10-05 20:47:46 -04:00
151 lines
6.6 KiB
Markdown
151 lines
6.6 KiB
Markdown
| Supported Targets | ESP32 | ESP32-S2 | ESP32-S3 | ESP32-C3 |
|
|
| ----------------- | ----- | -------- | -------- | -------- |
|
|
|
|
# Basic Console Example (`esp_console_repl`)
|
|
|
|
(See the README.md file in the upper level 'examples' directory for more information about examples.)
|
|
|
|
This example illustrates the usage of the REPL (Read-Eval-Print Loop) APIs of the [Console Component](https://docs.espressif.com/projects/esp-idf/en/latest/api-guides/console.html#console) to create an interactive shell on the ESP chip. The interactive shell running on the ESP chip can then be controlled/interacted with over a serial interface. This example supports UART and USB interfaces.
|
|
|
|
The interactive shell implemented in this example contains a wide variety of commands, and can act as a basis for applications that require a command-line interface (CLI).
|
|
|
|
Compared to the [advanced console example](../advanced), this example requires less code to initialize and run the console. `esp_console_repl` API handles most of the details. If you'd like to customize the way console works (for example, process console commands in an existing task), please check the advanced console example.
|
|
|
|
## How to use example
|
|
|
|
This example can be used on boards with UART and USB interfaces. The sections below explain how to set up the board and configure the example.
|
|
|
|
### Using with UART
|
|
|
|
When UART interface is used, this example should run on any commonly available Espressif development board. UART interface is enabled by default (`CONFIG_ESP_CONSOLE_UART_DEFAULT` option in menuconfig). No extra configuration is required.
|
|
|
|
### Using with USB_SERIAL_JTAG
|
|
|
|
On chips with USB_SERIAL_JTAG peripheral, console example can be used over the USB serial port.
|
|
|
|
* First, connect the USB cable to the USB_SERIAL_JTAG interface.
|
|
* Second, run `idf.py menuconfig` and enable `CONFIG_ESP_CONSOLE_USB_SERIAL_JTAG` option.
|
|
|
|
For more details about connecting and configuring USB_SERIAL_JTAG (including pin numbers), see the IDF Programming Guide:
|
|
* [ESP32-C3 USB_SERIAL_JTAG](https://docs.espressif.com/projects/esp-idf/en/stable/esp32c3/api-guides/usb-serial-jtag-console.html)
|
|
* [ESP32-S3 USB_SERIAL_JTAG](https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/api-guides/usb-serial-jtag-console.html)
|
|
|
|
### Using with USB CDC (USB_OTG peripheral)
|
|
|
|
USB_OTG peripheral can also provide a USB serial port which works with this example.
|
|
|
|
* First, connect the USB cable to the USB_OTG peripheral interface.
|
|
* Second, run `idf.py menuconfig` and enable `CONFIG_ESP_CONSOLE_USB_CDC` option.
|
|
|
|
For more details about connecting and configuring USB_OTG (including pin numbers), see the IDF Programming Guide:
|
|
* [ESP32-S2 USB_OTG](https://docs.espressif.com/projects/esp-idf/en/stable/esp32s2/api-guides/usb-otg-console.html)
|
|
* [ESP32-S3 USB_OTG](https://docs.espressif.com/projects/esp-idf/en/stable/esp32s3/api-guides/usb-otg-console.html)
|
|
|
|
### Other configuration options
|
|
|
|
This example has an option to store the command history in Flash. This option is enabled by default.
|
|
|
|
To disable this, run `idf.py menuconfig` and disable `CONFIG_CONSOLE_STORE_HISTORY` option.
|
|
|
|
### Build and Flash
|
|
|
|
Build the project and flash it to the board, then run monitor tool to view serial output:
|
|
|
|
```
|
|
idf.py -p PORT flash monitor
|
|
```
|
|
|
|
(Replace PORT with the name of the serial port to use.)
|
|
|
|
(To exit the serial monitor, type ``Ctrl-]``.)
|
|
|
|
See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.
|
|
|
|
## Example Output
|
|
|
|
Enter the `help` command get a full list of all available commands. The following is a sample session of the Console Example where a variety of commands provided by the Console Example are used.
|
|
|
|
On ESP32, GPIO15 may be connected to GND to remove the boot log output.
|
|
|
|
```
|
|
This is an example of ESP-IDF console component.
|
|
Type 'help' to get the list of commands.
|
|
Use UP/DOWN arrows to navigate through command history.
|
|
Press TAB when typing command name to auto-complete.
|
|
[esp32]> help
|
|
help
|
|
Print the list of registered commands
|
|
|
|
free
|
|
Get the total size of heap memory available
|
|
|
|
restart
|
|
Restart the program
|
|
|
|
deep_sleep [-t <t>] [--io=<n>] [--io_level=<0|1>]
|
|
Enter deep sleep mode. Two wakeup modes are supported: timer and GPIO. If no
|
|
wakeup option is specified, will sleep indefinitely.
|
|
-t, --time=<t> Wake up time, ms
|
|
--io=<n> If specified, wakeup using GPIO with given number
|
|
--io_level=<0|1> GPIO level to trigger wakeup
|
|
|
|
join [--timeout=<t>] <ssid> [<pass>]
|
|
Join WiFi AP as a station
|
|
--timeout=<t> Connection timeout, ms
|
|
<ssid> SSID of AP
|
|
<pass> PSK of AP
|
|
|
|
[esp32]> free
|
|
257200
|
|
[esp32]> deep_sleep -t 1000
|
|
I (146929) deep_sleep: Enabling timer wakeup, timeout=1000000us
|
|
I (619) heap_init: Initializing. RAM available for dynamic allocation:
|
|
I (620) heap_init: At 3FFAE2A0 len 00001D60 (7 KiB): DRAM
|
|
I (626) heap_init: At 3FFB7EA0 len 00028160 (160 KiB): DRAM
|
|
I (645) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
|
|
I (664) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
|
|
I (684) heap_init: At 40093EA8 len 0000C158 (48 KiB): IRAM
|
|
|
|
This is an example of ESP-IDF console component.
|
|
Type 'help' to get the list of commands.
|
|
Use UP/DOWN arrows to navigate through command history.
|
|
Press TAB when typing command name to auto-complete.
|
|
[esp32]> join --timeout 10000 test_ap test_password
|
|
I (182639) connect: Connecting to 'test_ap'
|
|
I (184619) connect: Connected
|
|
[esp32]> free
|
|
212328
|
|
[esp32]> restart
|
|
I (205639) restart: Restarting
|
|
I (616) heap_init: Initializing. RAM available for dynamic allocation:
|
|
I (617) heap_init: At 3FFAE2A0 len 00001D60 (7 KiB): DRAM
|
|
I (623) heap_init: At 3FFB7EA0 len 00028160 (160 KiB): DRAM
|
|
I (642) heap_init: At 3FFE0440 len 00003BC0 (14 KiB): D/IRAM
|
|
I (661) heap_init: At 3FFE4350 len 0001BCB0 (111 KiB): D/IRAM
|
|
I (681) heap_init: At 40093EA8 len 0000C158 (48 KiB): IRAM
|
|
|
|
This is an example of ESP-IDF console component.
|
|
Type 'help' to get the list of commands.
|
|
Use UP/DOWN arrows to navigate through command history.
|
|
Press TAB when typing command name to auto-complete.
|
|
[esp32]>
|
|
|
|
```
|
|
|
|
## Troubleshooting
|
|
|
|
### Line Endings
|
|
|
|
The line endings in the Console Example are configured to match particular serial monitors. Therefore, if the following log output appears, consider using a different serial monitor (e.g. Putty for Windows) or modify the example's [UART configuration](#Configuring-UART-and-VFS).
|
|
|
|
```
|
|
This is an example of ESP-IDF console component.
|
|
Type 'help' to get the list of commands.
|
|
Use UP/DOWN arrows to navigate through command history.
|
|
Press TAB when typing command name to auto-complete.
|
|
Your terminal application does not support escape sequences.
|
|
Line editing and history features are disabled.
|
|
On Windows, try using Putty instead.
|
|
esp32>
|
|
```
|